This is a note to let you know that I've just added the patch titled drm/nouveau/kms/nv50: skip core channel cursor update on position-only changes to the 4.11-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: drm-nouveau-kms-nv50-skip-core-channel-cursor-update-on-position-only-changes.patch and it can be found in the queue-4.11 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From e6db95799b1b870aae15682a6d0898df9e9dfb38 Mon Sep 17 00:00:00 2001 From: Ben Skeggs <bskeggs@xxxxxxxxxx> Date: Mon, 1 May 2017 16:53:40 +1000 Subject: drm/nouveau/kms/nv50: skip core channel cursor update on position-only changes From: Ben Skeggs <bskeggs@xxxxxxxxxx> commit e6db95799b1b870aae15682a6d0898df9e9dfb38 upstream. The DRM core used to only call prepare_fb/cleanup_fb() when a plane's framebuffer changed, which achieved the desired effect. It's apparently now up to the driver to decide on its own. Signed-off-by: Ben Skeggs <bskeggs@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/nouveau/nv50_display.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) --- a/drivers/gpu/drm/nouveau/nv50_display.c +++ b/drivers/gpu/drm/nouveau/nv50_display.c @@ -1113,9 +1113,13 @@ static void nv50_curs_prepare(struct nv50_wndw *wndw, struct nv50_head_atom *asyh, struct nv50_wndw_atom *asyw) { - asyh->curs.handle = nv50_disp(wndw->plane.dev)->mast.base.vram.handle; - asyh->curs.offset = asyw->image.offset; - asyh->set.curs = asyh->curs.visible; + u32 handle = nv50_disp(wndw->plane.dev)->mast.base.vram.handle; + u32 offset = asyw->image.offset; + if (asyh->curs.handle != handle || asyh->curs.offset != offset) { + asyh->curs.handle = handle; + asyh->curs.offset = offset; + asyh->set.curs = asyh->curs.visible; + } } static void Patches currently in stable-queue which might be from bskeggs@xxxxxxxxxx are queue-4.11/drm-nouveau-tmr-ack-interrupt-before-processing-alarms.patch queue-4.11/drm-nouveau-tmr-fix-corruption-of-the-pending-list-when-rescheduling-an-alarm.patch queue-4.11/drm-nouveau-tmr-avoid-processing-completed-alarms-when-adding-a-new-one.patch queue-4.11/drm-nouveau-mmu-nv4a-use-nv04-mmu-rather-than-the-nv44-one.patch queue-4.11/drm-nouveau-therm-remove-ineffective-workarounds-for-alarm-bugs.patch queue-4.11/drm-nouveau-kms-nv50-skip-core-channel-cursor-update-on-position-only-changes.patch queue-4.11/drm-nouveau-kms-nv50-fix-source-rect-only-plane-updates.patch queue-4.11/drm-nouveau-tmr-handle-races-with-hw-when-updating-the-next-alarm-time.patch